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5806381 = 719149293
BaseRepresentation
bin10110001001100100101101
3101220222212011
4112021210231
52441301011
6324241221
7100232140
oct26114455
911828764
105806381
113306469
121b40211
131283b39
14ab2057
1579a621
hex58992d

5806381 has 16 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 4667328.

The previous prime is 5806369. The next prime is 5806387. The reversal of 5806381 is 1836085.

It is a cyclic number.

It is not a de Polignac number, because 5806381 - 25 = 5806349 is a prime.

It is a super-2 number, since 2×58063812 = 67428120634322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5806387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19671 + ... + 19963.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

Almost surely, 25806381 is an apocalyptic number.

It is an amenable number.

5806381 is a deficient number, since it is larger than the sum of its proper divisors (1249619).

5806381 is a wasteful number, since it uses less digits than its factorization.

5806381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 5806381 is about 2409.6433346037. The cubic root of 5806381 is about 179.7360431569.

The spelling of 5806381 in words is "five million, eight hundred six thousand, three hundred eighty-one".

Divisors: 1 7 19 133 149 293 1043 2051 2831 5567 19817 38969 43657 305599 829483 5806381